Weather strip construction for window frames and sashes



INVENTORS ATTORNEYS.

Dec. l5, 1931.v o. M. EDWARDS ET AL WEATHER STRIPvGONSTRUCTION FORWINDOW FRAMES yAND SASHES Filed Jan. 21, 1930 Patented Dec. 15, 1931UNITED STATES PATENT OFFICE ,OLIVER M. EDWARDS AND EDWARD F. CHAFFEE, OFSYRACSE, NEW YORK, ASSIGNORS T0 TEE 0. M. EDWARDS COMPANY INC., 0FSYRACU SE, NEW YORK, A CORPORATION OF NEW YORK WEATHER STRIPCONSTRUCTION FOR WINDOW FRAMES AND SASHES Application mea January 21,193e. serial No. 422,456.

This invention relates to window frame and sash constructions and hasfor its object a particularly simple and eliicient weather stripconstruction for sealing the window against the inlet of air drafts,particularly windows for vehicles as railway cars, motor busses and thelike. The particular object of this invention is a weather strip carriedby the window guide or frame and coacting with the edge and the outerface of the sash members or stiles to seal the sash against the inlet ofair drafts at two points, that is,'at its edge and outer face adjacent?the window guide or frame.

The invention consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawings in which like characters designate corresponding parts in allthe views.

Figure 1 is a fragmentary vertical sectional view of a window sash andframe embodying our invention.

Figure 2 is an enlarged transverse, fragmentary, sectional View throughthe window sash and frame.

Figure 3 is a view similar to Figure 1, parts being omitted and the sashbeing shown as displaced slightly showing the normal position of theweather strip members or flanges before being compressed by the sash.

1 designates, generally, the frame, and 2, the sash. The frame 1 may beof any suitable form, size and construction, and it is here shown asmade up of a sheet metal body 3 mountable in a window opening of arailway car.

4 designates the sheeting of a railway car. The body 3 is shaped to forman outer window stop 5. 6 designates an inner stop, which may be of woodor metal, the inner stop being secured to the body 1. The outer stop 5and the inner stop 6 together with an intermediate portion of the body 1form a channel 7 which constitutes aguide for the sash 2 or the stilethereof.

This invention comprises, generally, a weather strip means carried by orwithin the guide and coacting with the sash to seal the outer side ofthe sash adjacent the guide and the inner edge of the sash in the guideagainst the inlet of air drafts, this weather strip means including asheet metal flange following generally the interior angle toward theouter side of the channel and a sheet metal flange lapping the margin ofthe outer face of the sash and extending outside of the channel andprovided with an angular flange extending at an inclined angle towardand engaging at its end with the top face of the stop 5, and forming adeiiector for deflecting air drafts away from the sash. Morespecifically, the weather strip means comprises a carrier 8 and sheetmetal weather strip flanges carried by the carrier, one located in thechannel to engage the edge of the sash and the other extending outsideof the channel to engage the margin of the front face of the sash andalso the top face of the outer stop 5.

The carrier 8 is here shown as an angle iron nested in the angle of thechannel toward the outer stop and secured thereto in any suitable manneras by screws 9. The flange 13 of the carrier against the stop 5 extendsinwardly beyond the stop.

10 and 11 designate respectively, the flanges of a sheet metal weatherstrip, which strip has a bearing on and is preferably secured along itsmedian line as at 12 to the carrier 8, it being usually welded at 12along its Inedian line to the carrier 8. The flange 10 extends in ageneral direction following the angle of the carrier or the channel andis tensioned, as seen in Figure 3, to normally stand away from thecarrier, it being formedwith a. 4reversely bent loop portion 14extending toward the edge of the sash to coact therewith so as to becompressed by the sash obliquely toward the angle of the carrier 8 ortoward the outer stop. The loop 14 and the sash have coacting meanswhich tends to compress the strip 10 in an oblique direction toward theangle of the carrier and the angle of the guide toward the stop 5.

As here illustrated, the sash is formed with a beveled or cam face 15coacting, with the end portion of the loop 14.

The Harige 11 of the weather strip is also fil) tensioned to pressagainst the outer face of the sash, that is, it normally stands away'from the underlying flange 13 of the carrier 8. This flange 13 extendsoutside of the channel, that is, beyond the top wall of the outer stop5. Usually, the sash or the stile thereof is provided with a rabbet 17for receiving the flange 13 andthe weather strip flange 11. The flange11 is also formed with a reversely bent portion 18 extending over theouter edge of the flange 13 of the carrier 8 and at an inclined angleoutwardly toward the top wall of the outer stop 5 and engaging at 19with said top wall. It is usually formed with a bead 20 for engaging thetop wall of the outer stop 5. This portion 18 forms a de flector fordeflecting the air drafts. outwardly away from the sash so that theywill have a minimum tendency to force their way into the channel throughthe rabbet 17. Also, the bend 21 between the major part of said weatherstrip 11 and the portion 18 coacts at 22 with the end wall 23 of therabbet and during the compression of this flange 11, the bend 21 has aslight move'- ment toward the end wall 22 of the rabbet due to the factthat the bend is swinging about an axis or fulcrum 12 and the bead 20 ofthe portion 18 is held from swinging inwardly while it is slidingoutwardly along the top of the outer stop 5.

The sash is provided with the usual sash holders there being usually twosash holders at the lower corners of the sash, each of these sashholders including a member as a bolt which coacts with means as a rackon the inner stop, the bolt and the rack coacting to thrust the sashtoward the outer stop and hence hold the weather strip member 11 in snugenagement with'the sash or with the wall of the rabbet 17. Y

rPhe sash holders may be of anysuitable form, size and construction andinclude a casing 24 having a spring-pressed boltl25` slidable thereinwhich is operable by a movable lever 26. As before stated, the sashholder may be of any suitable construction and as sash holders of'thistype are well known,

. further description thereof is thought to be unnecessary. 27designates the rack on the inner stop,

Y the bolt 25Aand the rack 27 having coacting bevelled. surfaces whichact inclined plane fashion to thrust the sash toward the outer stop andhence compress the weather strip 11 and particularly the portion 13thereof so that it makes snug engagement with the wall of the rack 27.The 'formation of the bolt and therack to act inclined plane fashionperse is not part of this invention, but the cooperation or combinationof the sash holder and rack acting to thrust the sash towardy the outerstop with the weather strip in such a manner that the action of the sashholder holds the weather strip in snug engagement a unitary structure'and is carried by the window guide, it is readily applied to standardforms of guides for railway window sashes and furthermore as it coactswith the sash at the edge and front sash thereof, the sash is sealed attwo points against the passage of 'air drafts. Owing to the deflectorportion 18, air drafts which would otherwise normally tend to forcethrough the guide or around the edge of the sash are deiected away fromthe sash. It will be understood that there is a weather strip at bothedges of the sash. Owing to the weather strips, the sashes are snuglymounted regardless of slight variations either in the width of thesashes or in the widthof the frames or the distance between the guides.It will be understood that such variations in regard to guides arealways present and this weather strip compensates for variations, withinlimits, in the distance between the guides, that is, the guides atopposite edges of the sash.

What we claim is:

1. The combination with a window sash and guide therefor, in the form ofa channel angular in cross section, of weather strip lneans carried bythe guide and extending into the channel, including a resilient striplocated in the channel, the strip and the sash having coacting meansforcing the strip toward the outer side and the bottom of the channel inan oblique direction.

2. The combination with a window sash and guide therefor, the guide'being in the form of a channel angular in cross section, of weatherstrip means carried by the guide and including a resilient sheet metalstrip member having a flange arranged to lap the margin of the outerside of the sash and a second flange angular with the first and eX-tending crosswise of the edge of the sash, the latter fiange having aloop portion for coactingwith the edge of the sash to be engaged andcompressed thereby.

3'. The combination with a window sash and guide therefor, the guidebeing in the formof a channel angular in cross section, of weather stripmeans carried by the guide and including a resilient sheet metal stripmember having a flange arranged to lap the margin of the outer side ofthe sa'sh and a second flange angular with the first and extendingcrosswise of the edge of the sash, the latter and the former flangehavlng means for sealing the joint against air drafts at the end wall ofthe rabbet.

4. The combination with a window sash,

inner and outer stops forming a guide for the sash, the sash beingformed with a rabbet in the side thereof toward the outer stop, ofweather strip means carried by the guide andv including a resilientflange arranged to extend into the rabbet, said flange having an angularportion extending outwardly and at an inclined angle toward the top faceof the outer stop forming a deflector.

5. The combination with a window sash and inner and outer stops forminga sash guide, the sash being formed with a rabbet in the side thereoftoward the outer stop, of weather strip means carried by the guide andincludinga resilient flange arranged to eX- tend into the rabbet, saidflange having an angular portion extending outwardly and at an inclinedangle toward the top face of the outer stop forming a deflector, theangle between said flange and the angular portion coacting with the endWall of the rabbet to seal the rabbet against the inlet of air drafts.

6. The combination with a window sash v and inner and outer stopsforming a sash guide, a weather strip means eomprisinga carrier angularin cross section and nested 1n the interior angle of the guide towardthe outer stop and a resilient strip carried by the carrier and coactingwith the edge and the margin of the outer face of the sash.

7. The combination with a window sash and inner and outer stops forminga sash guide, of weather strip means comprising a carrier angular incross section and nested in the interior angle of the guide toward theouter stop and a strip carried by the carrier and coacting with thesash.

8. The combination with a window sash and inner and outer stops forminga sash guide, of acarrier located in the interior angle of the guidetoward the outer stop, of a sheet .metal weather strip carried by thecarrier and bearing at its intermediate portion against the same, theportion of the strip on the opposite sides of its bearing pointconstituting two weather strip flanges, one of said flanges followinggenerally the angle of the carrier and having a reversely bent porl tionfor engaging the edge ofthe sash, the portion of the Weather stripmember, on the other side of its bearing, being tensioned'topress'against the inner margin of the outer face of thesash andhaving anoutwardly extending portion extending at an inclined ally the angle ofthe carrier and having a reversely bent portion for engaging the edge ofthe sash, the portion of the weather strip member on the other side ofits bearing being tensioned to press against the inner margin of theouter face of the sash and having an outwardly extending portion at aninclined angle outwardly and pressing against the top face of vthe outerstop, the sash being formed with a rabbet for receiving the latterflange and the bend of the latter flange coacting with the end wall ofthe rabbet to seal the rabbet against the inlet of air drafts.

10. The combination with a Window sash and frame having a sash guide, ofweather strip means carried by the guide and engag-` ing the outer faceof the margin of the sash adjacent the guide, a sash holder carried onthe inner face of the sash and having a movable locking member coacting`with means on the :trame to hold the sash from movement, said memberand the means on the inner stop coacting to thrust the sash outwardlytoward the outer stop and hold the said weather strip means andthe outerside of the sash in snug engagement.

In testimony whereof, We have hereunto signed our names, at Syracuse, inthe county of Onondaga, and State of New York, this 3rd day of January,1930.

OLIVER M. EDWARDS. EDWARD F. CHAFFEE.

angle outwardly andpressing against the top face of the outer stop.

9. The combination with a window sash and inner and outer stops, of acarrier located in the interior angle of the guide toward the outerstop, of a sheet metal weather strip carried by the carrier and bearingat itsin termediate portion against the same, the portion of the stripon the opposite sides of its bearing point constituting two weatherstrip lian-ges, one of said flanges following gener-

